TMI but is waking up to have a BM a sign of labor soon?

Alissa • Dear son born 5/7/18. Three angel babies. Dear son born 8/27/20 and pregnant with our first girl and last baby Pittsburgh PA-C

I've had loose stools for the past week. Now I have a bowel movement after every meal. Last night I even woke up in the middle of the night to go. This didn't happen with my first 2 babies. Anyone have this and go into labor shortly after?

I'm 37+3